Radio City Music Hall decided in advance to exclude certain people from its shows, and sent bouncers to get one from a show, and identified her through facial recognition.

The reason they did not want her to watch the show is that she is a lawyer that works for a law firm that is handling someone's a legal dispute with the operators of Radio City Music Hall.

In addition to being a bizarre overreaction, it demonstrates why we need to ban the practice of identifying people by their faces, outside of very limited circumstances.

However, the crucial step in the chain of surveillance is not the step of matching the face in a picture against a database. Rather, it is systematically collecting images of people (whether video or still) that could be used to identify people. That is what we need to prohibit. We must prohibit surveillance cameras and allow only security cameras.